软蒺藜化学成分的分离与鉴定

目的对软蒺藜的化学成分进行研究。方法采用硅胶柱色谱、聚酰胺柱色谱及Sephadex LH-20柱色谱等方法进行分离纯化,通过理化方法以及波谱分析鉴定化合物的结构。结果从软蒺藜体积分数为75%的乙醇提取物中分离了5个化合物,分别鉴定为苜蓿素(1)、异鼠李素-7-O-α-L-吡喃鼠李糖苷(2)、异鼠李素-3-O-β-D-吡喃葡萄糖-7-O-α-L-吡喃鼠李糖苷(3)、β-谷甾醇(4)、胡萝卜苷(5)。结论化合物2、3为首次从滨藜属植物中分离得到。

Chemical constituents of the seeds of Atriplex centralasiatica

Objective To study the chemical constituents of the seeds of Atriplex centralasiatica. Methods The constituents were isolated by a combination of silica gel, polyamide and sephadex LH-20 column chromatography. The chemical structures were elucidated on the basis of physicochemical constants and spectral data. Results Five compounds were obtained and identified as tricin (1), isorhamnetin-7-O-α-L-rhamnopyranoside(2), isorhamnetin-3-O-β-D-glucopyranosyl-7-O-α-L-rhamnopy- ranoside (3), β-sitosterol (4), daucosterol (5). Conclusion Compounds 2 and 3 are isolated from the genus for the first time．